IGMP improvements

[vpp.git] / src / vppinfra / vec.h

diff --git a/src/vppinfra/vec.h b/src/vppinfra/vec.h
index f233ae1..1b0378f 100644 (file)
--- a/src/vppinfra/vec.h
+++ b/src/vppinfra/vec.h
@@ -953,6 +953,27 @@ do {                                               \
   _v(i);                                               \
 })
 
+/** \brief Search a vector for the index of the entry that matches.
+
+    @param v1 Pointer to a vector
+    @param v2 Pointer to entry to match
+    @param fn Comparison function !0 => match
+    @return index of match or ~0
+*/
+#define vec_search_with_function(v,E,fn)                \
+({                                                     \
+  word _v(i) = 0;                                      \
+  while (_v(i) < vec_len(v))                           \
+  {                                                    \
+    if (0 != fn(&(v)[_v(i)], (E)))                      \
+      break;                                           \
+    _v(i)++;                                           \
+  }                                                    \
+  if (_v(i) == vec_len(v))                             \
+    _v(i) = ~0;                                                \
+  _v(i);                                               \
+})
+
 /** \brief Sort a vector using the supplied element comparison function
 
     @param vec vector to sort